the proper Solution for
Airtight constructions
The most effective way to reduce energy consumption is to insulate buildings. The Building Decree is becoming ever stricter for new builds, which means it is no longer sufficient to just use insulation materials. Insulation must be placed in a manner that allows it to retain its efficacy for a long period of time. It is thus essential for moisture-regulating and airtight membranes to be placed on both sides of the insulation.
This is how to make the insulation
Sustainable and efficient
Meuwissen Gerritsen’s range contains a wide variety of membranes that are placed on the warm side of the insulation. Vapour control or moisture-tight membranes prevent hot air from leaving buildings via the insulation. In addition, the membranes ensure sufficient resistance against vapour pressure. This vapour pressure can lead to a vapour pressure deficit between the indoor and outdoor air, which Mother Nature will try to rectify. Without construction membranes, the moisture would pass freely through the insulation and condense at its dew point, whereby the construction would rot and mould would form.
If constructions do not have an airtight finish, hot air is able to escape through cracks in the construction or through connecting joints. This must be prevented because extra energy will be needed to heat the air and such losses, in effect, equate to energy loss. Another negative effect is the risk of condensation when this air stream cools and becomes condensation as it exits.
Therefore, instead of placing insulation material, it is perhaps more important to properly install and fully seal the concerned construction. This can be done by applying Miofol® or TAFTEX® vapour control and vapour barrier membranes on the warm side of the insulation, and by sealing overlaps, staples or tears using VASTR® or TAFTEX tape.
When installing a vapour control membrane, we recommend applying the membrane with our VASTR® double-sided tape or VASTR® Sealpro. This means the membrane will be applied directly to the surface, and will not be damaged by staples or other means of attachment. It is also crucial to make openings in the membrane airtight, like those for gas outlets and ventilation ducts, because these areas are particularly susceptible to energy loss and condensation. Tyvek® Flexwrap is a flexible and extremely adhesive finishing tape, which can be easily and quickly wrapped around irregular edges.
When membranes are applied by means of a battens to create a cavity for electricity and at the same time protect the membrane as it lies deeper in the construction, we recommend applying VASTR® Butyl tape under the batten. This prevents the screws or nails used to fasten the battens from making an opening in the underlying membrane. VASTR® Butyl tape completely seals the membrane around the screw hole, ensuring an air and vapour tight connection.
Looking for the best way to ensure airtight insulation for your project? Feel free to contact us for appropriate advice.
Applicable products
Alkreflex® 2L-2 is composed of two layers of Air cushion membrane, finished with a layer of coated pure aluminium on both sides.
Miofol® 125S is a reinforced vapour controlling technical construction membrane. The composite membrane has an extremely long life due to the use of virgin PE.
TAFTEX IN-100 is a vapour control and waterproof membrane composed of two layers of polypropylene.
Miofol VS 2 is a 3-layer floor membrane, including 3 mm PE foam and a blue HDPE top layer.
Miofol® Active is an airtight intelligent vapour control layer with a dual function: vapour controlling in winter and breathable in summer.
Miofol® 100S is a vapour control 3 layer COEX membrane with exceptional barrier properties.
Miofol® AVS 4 is a 5-layer laminated floor membrane equipped with overlap and integrated adhesive strip.
Alkreflex® 2.5 is a multi-layer insulating membrane, which is suitable for wall and roof application.
VASTR® Non-woven tape is a single-sided adhesive tape made from polypropylene nonwoven and coated with a VASTR® high performance adhesive.
VASTR® Seal Pro is an extremely adhesive and double-sided sealing tape for bonding membranes on uneven substrates.
VASTR® Nail sealing tape is a self-adhesive PE foam tape for the waterproof sealing of roof membranes in combination with battens.
VASTR® Protect tape is a tape for easy application of packaging films or protective membranes around window frames, elements or doors.
VASTR® membrane tape basic is a single-sided tape for wind and waterproof sealing of overlap seams and repair of damage.
VASTR® Facade tape is specially developed for wind and watertight sealing of the UV-resistant membrane in facade or roof structures.
VASTR® Double-sided tape is an extremely adhesive two-sided tape for the application of membranes and the air- and windproof sealing of overlap seams.
VASTR® Butyl tape is a double-sided adhesive sealing tape for adhering membranes to various substrates.
VASTR® Aluminium tape is a reinforced adhesive tape for air, water and vapour tight sealing of overlap seams and repairing damage.
Tyvek® tape is a one-sided HDPE tape for wind and watertight sealing of Tyvek® membranes in facade or roof structures.
Tyvek® FlexWrap tape is a flexible tape for air and watertight sealing of penetrations at roofs, ceilings and wall.
Tyvek® Facade tape is specially developed for wind and watertight sealing of the Tyvek® UV-Facade membrane.
TAFTEX® membrane tape is a single-sided tape for wind and watertight masking of overlap seams and repairing damage.
TAFTEX® Facade tape is a single-sided adhesive tape for wind, water and vapour tight sealing of UV-resistant mebranes
TAFTEX® Alu tape is a single-sided adhesive tape for wind, air, water and vapour tight sealing of overlap seams and repairing damage.
Miofol® 150A is a vapour barrier reflective aluminium membrane reinforced with a polypropylene fabric.
Established brands
Proven quality
Meuwissen Gerritsen supplies a variety of popular A-brands. Besides our own product lines Miofol®, Alkreflex®, Polytex®, TAFTEX® and VASTR® we are also an exclusive DuPont distributor of AirGuard® en Tyvek®. Check out the extensive possibilities for durable constructions and effective insulation.
We supply
Whatever you need
Meuwissen Gerritsen aims to offer a comprehensive range of basic products, specials and accessories in order to fully support our re-sellers and professionals who work with our products. Needs and preferences in the construction sector are always changing. So please contact us if any product is missing from our comprehensive range.